Facebook offers lots of advice on how to set up a Facebook page but finding the right information is sometimes more challenging. Their business overview is a great introduction to using a Facebook page for business. If you need more in-depth help setting up your page and all your other settings these pages are the best place to go.
Facebook has some great marketing tools where you can really target the group of people you want to get your message to. These useful articles will help you set up ad and more.
Social Media Examiner is a useful website, they specialise in all social media and have some great articles.